Surfacing roll



' '5 'f 'I l/J 25 y l Nov. 15, 1932. l j 'Q H, DRIVER V1,887,623

SURFAGING ROLL Fild Feb. 28, 1931 2 sheets-sheet 1 roll which is simpleand efficient.

Patented Nov. 15, 1932 cHARLEs n. DRIVER, or RACINE, wIscoNsIN sURFAcINGRoIiIl "application med February 2s,- 1931. serial No. 519,103.`

The invention relates to a surfacing roll `of the type in which anabrading or surfacing sheet is arranged around the roll and fastenedthereto at its ends.

The vsurfacing roll to which the invention applies in particular isformed by segmental sections which are joined or connected together toturn or tilt relative to each other and which have the inside edgesthereof form jaws to grip the surfacing sheet at its end and therebyfasten it thereto.

VThe invention has as its object to provide a surfacing roll which willretain the same shape upon its segmental sections being tilted todifferent positions relative to each other.

Another object is to provide a surfacing roll which will retain the sameshape upon different thickness surfacing sheets being fastened thereon.Y j

Another Objectis to provide a surfacing roll in which its segmentalsections may be readily tilted or turned to actuate the j awsy formedthereby.

Another object is to provide a surfacing Y Another object is to providea. surfacing roll which facilitates and expedites applying the surfacingsheet thereto or removing it therefrom.

Another object is to provide'a surfacing roll which may be readily andeconomically manufactured.

According to the invention. the surfacing roll is formed by segmentalsections which are joined Vor connected together to turn or tilt upon anaxis coaxial or concentric therewith andwhich have the inside edgesthereof form jaws to grip the surfacing sheet'at its edges and therebyfasten it in place.

The accompanying drawings illustratea surfacing roll embodying theinvention and various modifications therein, and the views in thesedrawings are as follows:

Fig. 1 is a front view of the roll.

Fig. 2 is a longitudinal section on the line ythe Fia 2-7 the surfacingAsheet.

lmental sections 1 which are pivoted together Fig. 5 is a section on.the line 5-5, Fig. 1.

Fig. 6 lis a the jaws.

Fig. 7 isa front view of' the roll with va-` rious modifications'therein.

Y Fig. f8 is a section on the line 8 8, Fig. 7. Fig. 9 is a transversesection showing another way to open the jaws.

Fig. 10 is a transverse section showing modiied segmental sections. Y 1

Fig. 11 is a front view of a modified inside edge on the segmentalsections. u

Fig. 12 is a transverse section on the line 12-12, Fig. 7.

Fig. 13 is atransverse section of the roll witha guide placed betweenthe jaws to crease Fig. 14 is'l a perspective 'of the guide for creasingthe surfacing sheetl" Fig. 15 is a transverse section on the line 15-15,Fig. Y

f Figs. 1 to. 5

The surfacing roll is formed bytwo seg to tiltrelaitive to eachothe'r'upon an axis coaxial or concentric with the roll andv therebyform movable jaws 2 to fasten an abrading or other surfacing sheet 3thereon.-

/ The segmental sections are actuated by springs 4 to'urge the jawstowards each other. The surfacing sheet is arranged around the roll andits ends are The roll has its sections divided from each perspective ofa key to open j gripped between the other in a line diagonal to its axisso that and fastened upon each end thereof an outer bracket 5 having apivotor hub 6.

The upper segmental section has arranged and fastened upon each endthereof an inner bracket 7 having the pivot or hub extending into thebearing therein. Y

The segmental sections are joined and pivoted together by these bracketsto tilt relative to each other upon .an axis concentric with the roll.VY

The outer bracket is provided with a hole 8 Cil y for` receiving a pinto either hold or turn the roll in applying the surfacing sheet thereto.

The inner bracket is provided with a pin 9 for applying'thereto a key 10to turn the segmental sections to separate the jaws.

The outer bracket is provided with a lip 11 arranged to be `engaged by abit or cam v12 upon' the key. f

When the key is turned upon the pin, its bit or cam engages the lip andthereby the segmental sections are tilted t'o separate the jaws.

The key will retain itself in position to keep the jaws open after itscam passes over its center.

As the roll has its segmental sections pivoted concentric to its ownaxis it will not change its shape or be distorted uponits jaws being indi'erent positions.

The roll rotates upon ball bearing 13 arranged upon a shaft 14 extendingthrough its center and it has a driving pulley 15 arranged upon each endthereof and fastened to the outer bracket. j

The surfacing roll which has been explained to exemplify the inventionmay be employed for various purposes and modified in different ways andit may assume various forms.

Figs. and 8 The roll may have its segmental sections joined and pivotedtogether by a single bracket 16 arranged at each end thereof and havingan arcuate flange 17 coaxial or concentric with the roll.

The left bracket is fastened to the lower segmental section and theupper segmental section turns upon its bearing flange.

The right bracket is fastened to the upper segmental section and thelower segmental section turns upon its bearing ange.

Fig. 9 The roll may have its segmental sections actuated by a bar 18turning upon a longitudinal axis.

Vlhen the bar is turned from its initial position, it tilt-s thesegmental sections to close the jaws and then holds the jaws together.

Fig. 10 The roll may be formed by segmental sections of different lengtharcs, and the roll shown in this view is formed by a quadrantalsegmental section and a triquadrantal segmental section.

rlhe roll may have either j aw provided with a stop 19 to limit thedistance the end of the surfacing sheet may be inserted between thejaws.

Figs. 13 and 1.4

The roll may have set between its jaws a guide 20 for creasing thesurfacing sheet.

upon each end of the roll to connect said seg- ,85

mental sections together to tilt relative to each other upon the axis ofthe roll.

2. A surfacing roll, comprising a roll formed by segmental sections,jaws formed by said segmental sections to fasten a surfacing sheet tothe roll, an inner and an outer bracket pivoted to each other andarranged upon each end of the roll to connect said segmental sectionstogether to tilt relative to each other uponthe axis of the roll, aspring 95 to tilt said segmental sections Yto urge said jaws towardseach other, and means upon said brackets to tilt said segmental sectionsby a key to move said jaws apart.

3. A surfacing roll comprising a rollN formed by segmental sections,jaws formed by said` segmental sections to fasten a surfacing sheet tothe roll, an innerand an outer bracket relatively rotative about theroll axis and arranged uponeach end of the roll to connect saidsegmental sections together to tilt relative to each other upon the axisof the roll, a spring to tilt said segmental sections to urge said jawstowards each other,

and means upon said brackets to tilt said segmental sections by a key tomove said jaws apart. Y

4. A surfacing roll comprising a roll formed by segmental sections, jawsformed by said segmental sections' to fasten a surfacing sheet to theroll, ,an inner and an outer bracket relatively rotative about the rollaXis and arranged upon each end of the roll to connect said segmentalsections together to tilt relative to each other upon the axis of theroll, a shaft, and supporting bearings carried thereby upon which theouter roll brackets are mounted.

5. A surfacing roll comprising a, roll formed by segmental sections,jaws formed by said segmental sections to fasten Va surfacing sheet tothe roll, an inner and an outer bracket relatively rotative about theroll axis and arranged upon each end of the roll tov connect saidsegmental sectionstogetlier to tilt relative to each other upon the axisof the roll, a shaft and supporting bearings carried thereby upon whichthe outer roll brackets are mounted, and driving pulleys carried by theaforesaid outer brackets.

6. A surface roll comprising a roll formed by diagonally disposedsegmental sections constituting jaws for fastening a surface sheet tothe roll, an inner and outer bracket pivoted to each other and arrangedat each end of the roll to connect said segmental sections together totilt relatively to each other upon the axis of the roll, means upon saidbracket to tilt the segmentalsections by a key to move said jaws apart,a shaft carrying end bearings upon which the outer roll brackets aremounted, and driving pulleys fiXedly secured to the aforesaidouter-brackets.

7. A surface roll comprising a roll formed by diagonally disposedsegmental sections constituting jaws to fasten a surface sheet to theroll, and an inner and an outer bracket relatively rotative about theroll axis and arranged upon each end of the roll to connect saidsegmental sections togetherV to tilt rela.- tive to each other upon theaxis of the roll.

In witness whereof I have hereunto subscribed my name.

CHARLES H. DRIVER.

